Ghostbusters International #10 Subscription Variant

"The final resting place of the book of spells has been discovered and the Ghostbusters are going to Iceland to find it! It won't be easy, but for Egon Spengler, even Peter Venkman will give 110%! (Which is technically impossible but, c'mon, these folks do the impossible at least three times a week and twice more on Sunday!)"